How to Calculate Amazon Profit Margin in India (Formula + Example + Step-by-Step)
Calculating Amazon profit margin is essential before selling any product. This guide shows the exact formula, step-by-step process, and real example so you can understand your true profit.
Amazon Profit Margin Formula
The Formula
Profit = Selling Price − (Product Cost + Amazon Fees + Shipping + Ads + Returns)
Profit Margin % = (Profit ÷ Net Settlement Revenue) × 100
There are two important things to understand about this formula:
- Use net settlement revenue — not the listed selling price. Your actual revenue is the selling price minus GST. On a Rs 1,000 product with 18% GST, your revenue base is Rs 847.
- "Amazon Fees" includes multiple charges — referral fee, FBA fulfillment fee, and FBA storage fee. Each must be calculated separately for accuracy.
How to Calculate Amazon Profit Margin — Step by Step
Follow these 6 steps for any product you are selling or planning to sell on Amazon India:
Start with the selling price (GST-exclusive)
Take your listed MRP or selling price and subtract GST. If your product is Rs 999 with 18% GST, your net revenue is Rs 999 ÷ 1.18 = Rs 847. All margin calculations must start from this number — not Rs 999.
Selling Price: Rs 999 → Net Revenue after GST: Rs 847
Subtract product cost (COGS)
Include manufacturing or sourcing cost, packaging, labeling, and inbound freight to the Amazon FBA warehouse. Inbound freight is often forgotten but is a real cost — typically Rs 8–25 per unit depending on product size and origin.
Product Cost: Rs 300 → CM1 (Gross Margin): Rs 547
Subtract Amazon referral fee
Amazon charges a referral fee based on your product category — typically 5–18% of the selling price including GST. Electronics accessories: 8–10%. Fashion: 15–18%. Books: 5–8%. Check Amazon Seller Central for your exact category rate.
Referral Fee (8% of Rs 999): Rs 80 → Remaining: Rs 467
Subtract FBA fulfillment fee
The FBA fee depends on your product's size tier and weight. Small standard (under 30cm, under 225g): Rs 29–41. Medium standard: Rs 44–120. Large or heavy products can be Rs 150–400+. If you use Easy Ship or self-fulfill, substitute the actual shipping cost.
FBA Fee (500g product): Rs 55 → Remaining: Rs 412
Subtract advertising spend
Divide your total ad spend for this product by the number of units sold in the same period. This gives you the per-unit advertising cost. Never use blended ACOS across all products — it hides which products are profitable and which are not.
Ads per unit (12% of net revenue): Rs 102 → Remaining: Rs 310
Subtract returns provision and storage fees
Estimate your return rate for this product (category average: 3–8%). Multiply by your COGS to get the per-unit return cost provision. Add a monthly storage fee allocation (typically Rs 5–20/unit depending on product volume and turnover). This gives your final CM3.
Returns + Storage: Rs 18 → Final Profit (CM3): Rs 292 (34.5%)
Example Calculation — Rs 999 Electronics Product
Here is a complete worked example for an electronics accessory listed at Rs 999 (18% GST), sold via Amazon FBA India:
Full P&L — Rs 999 Electronics Accessory (FBA India)
Listed Selling Price (incl. GST)
What customer pays
Rs 999
Less: GST (18%)
Not your revenue
− Rs 152
Net Settlement Revenue
Your actual revenue base
Rs 847
Less: Product Cost (COGS + inbound freight)
Manufacturing + Rs 20 inbound FBA freight
− Rs 300
CM1 — Gross Margin
Revenue after product cost
Rs 547 (64.6%)
Less: Referral Fee (8% of Rs 999)
Electronics category rate
− Rs 80
Less: FBA Fulfillment Fee (500g)
Size + weight based fee
− Rs 55
Less: FBA Storage Fee (monthly, per unit)
Pro-rated monthly allocation
− Rs 8
CM2 — After Marketplace Costs
Before advertising
Rs 404 (47.7%)
Less: Advertising Spend (12% of net revenue)
Blended Sponsored Products ACOS
− Rs 102
Less: Return Provision (4% rate × Rs 300 COGS)
Estimated return cost per unit sold
− Rs 12
CM3 — True Unit Profit
Real profit per order
Rs 290 (34.2%)
What this tells you: On every Rs 999 sale, Rs 290 is real profit — a 34.2% CM3. This is healthy. However, if ad costs rise to 18% ACOS (common during peak season), CM3 drops to Rs 239 (28.2%). And if the product slows down and FBA storage fees increase, or return rate rises above 4%, margin compresses further. This is why tracking each cost layer individually is essential.
What Is a Good Profit Margin on Amazon India?
Use these benchmarks to evaluate your CM3 (the only margin that matters after all costs):
Low / Risky
Below 10%
Leaves no room for error. Any cost increase, return spike, or ad CPM rise will push you into losses. Not scalable.
Acceptable
10–25%
Workable but needs active management. Optimize CAC, reduce returns, and push AOV higher to protect margin.
Strong
25%+
Healthy unit economics. Sufficient to cover fixed costs, invest in growth, and withstand seasonal cost pressure.
Reality check: Most Amazon sellers in India overestimate their margin by 10–20 percentage points because they do not account for all six cost layers. If you believe you are at 35%, running the complete calculation often reveals 15–22%. Always calculate CM3 — not gross margin — before making scaling decisions.
5 Common Amazon Profit Margin Mistakes
Calculating on the GST-inclusive price
Your real revenue is selling price ÷ (1 + GST rate). On 18% GST products, this means your revenue base is 84.7% of the listed price. Every margin percentage you calculate on the full price is inflated by roughly the GST rate.
Ignoring FBA storage fees
Storage fees are billed monthly and are invisible at the per-unit level unless you allocate them. Slow-moving products with 60+ days of inventory can accumulate Rs 20–80 in storage cost per unit — easily wiping out what looks like a healthy margin.
Using blended ACOS instead of SKU-level ad cost
Blended ACOS hides profitable products subsidizing loss-makers. A product running 35% ACOS in a category where CM2 is 30% is generating losses on every ad-driven sale — but blended reports will not show it.
Not provisioning for returns
Returns are not free. When a product comes back, you often lose the product value, pay reverse FBA fees, and incur reconditioning costs. A 6% return rate on a Rs 350 COGS product costs Rs 21 per unit sold — a cost most sellers never formally track.
Forgetting inbound freight to FBA
The cost to ship your inventory from your factory or warehouse to an Amazon fulfillment center is a legitimate product cost. At Rs 10–25 per unit, it meaningfully impacts margin on lower-priced products. Always include it in COGS.
Calculate Your Amazon Profit
Use these free calculators to model your exact margin — no spreadsheet needed:
Amazon India Profit Calculator
Full CM1 → CM2 → CM3 breakdown for any product. Includes all fee layers.
Break-Even ROAS Calculator
Find the minimum ROAS where your ads stop losing money.
Amazon FBA Fee Calculator
Calculate the exact referral fee + FBA fee for your product.
Profit Margin Calculator
General D2C/Amazon profit margin calculator with all cost inputs.
Key Takeaways
- Use the formula: Profit = Selling Price − COGS − Amazon Fees − Shipping − Ads − Returns. Then divide by net settlement revenue for the margin percentage.
- Always calculate on the GST-exclusive price. Calculating on the full listed price overstates your margin by the GST rate (12–18% for most products).
- CM3 (after all variable costs including ads and returns) is the only number that tells you if you are actually profitable. CM1 and CM2 are useful checkpoints, not final answers.
- Below 10% CM3 is unsustainable. 20–30% is healthy. Above 30% gives you real room to scale.
- Track margin per SKU — not blended. One strong product can hide several loss-making ones if you only look at account-level averages.
Related Resources
Amazon FBA Fees India 2026
Complete breakdown of every fee Amazon charges Indian sellers.
What Is Amazon ASIN Number?
How ASINs work and what they mean for your listing strategy.
FBA vs Self Fulfilled — Which Is More Profitable?
Side-by-side comparison of fulfillment cost and margin impact.
Amazon FBA Fees & Profit Guide
In-depth guide on optimizing every Amazon cost layer.
How to Reduce Amazon ACOS
Tactics for cutting ad spend while maintaining or growing sales.
D2C Brand Profitability India Guide
Full CAC, LTV, and contribution margin framework for D2C brands.
Frequently Asked Questions
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